Do you worry about missing some important and expected guests? Or are you thinking of improving your house safety? With this smart alarm doorbell, you will never miss any guests or let the thief run away!

This wireless doorbell has pretty streamlined appearance which shows the elegant tastes and the fashionable temperament of the host.The product contains 18 languages of Saluting guest+Alarming music for you to choose.

Features :

1. Automatic human sensor.
2. It can be used as guest saluting or security alarm at your choice.
3. External power supply and battery power supply can automatically be switched and work separately.
4. Adjustable angle.
5. You can install the doorbell at home in kitchen, living-room, bed room, etc.
6. Super low power consumption,the standby currrent is <0.3mA
7. 18 languages of Saluting guest + Alarming music.

Specifications :

1. Color : White
2. Detecting range : about 3m – 10m
3. Put three "AA1.5V"batteries in or connect with 6V – 12V external power, and then it will work.
4. Standby current: <0.3mA
5. Time of Self inspection( before start to work) : 15 – 20s
6. If the temperature of the environment is too high(over 30℃), it is normal that the detecting distance will become shorter.
7. Adjustment angle : 360°